HomeInternational Rice Research Notesvol. 23 no. 3 (1998)

Phylogenetic Relationship of Genus Oryza as Revealed by RAPD Analysis

Z. X. Xie | Y. Zhou | Bao-rong Lu | Y. P. Zou | De-yuan Hong

Discipline: Agriculture



The agronomically important genus Oryza L. includes some 20 wild and 2 cultivated species and is divided into four complexes based on morphological and cytogenetical studies. New molecular approaches, such as restriction fragment length polymorphism (RFLP), internal transcribed spacer (ITS) sequencing, random amplified polymorphic DNA (RAPD), and chloroplast sympo sequence repeats (cpSSR), have been increasingly employed to assess phylogenetic relationships of the genus, but controversy still exists with regard to species relationships. This study applied RAPD technology to determine the phylogenetic relationships ofOryza and evaluate the value and limitation of this technology in phylogenetic studies.